<a id="aptureLink_F2g9MXMw3t" href="http://en.wikipedia.org/wiki/Vi">vi editor is very powerful in the sense that you can use maps, abbreviations and recordings. One such example is when you are trying to write a email or trying to write a paragraph and you want to format it. You can create a mapping like so, in your .exrc or .vimrc and use it to format the paragraph.

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